Input validation error in ImageMagick - CVE-2026-53460

Vulnerability identifier: #VU134224

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2026-53460

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
ImageMagick
Debian Linux
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Desktop Applications Module
openSUSE Leap
openEuler
ImageMagick
ImageMagick-c++
ImageMagick-c++-devel
ImageMagick-debuginfo
ImageMagick-debugsource
ImageMagick-devel
ImageMagick-perl
ImageMagick-help
ImageMagick-devel-32bit
libMagickWand-7_Q16HDRI10-32bit
libMagick++-7_Q16HDRI5-32bit-debuginfo
ImageMagick-extra
ImageMagick-extra-debuginfo
libMagickCore-7_Q16HDRI10-debuginfo
ImageMagick-config-7-SUSE
libMagick++-7_Q16HDRI5
libMagick++-7_Q16HDRI5-debuginfo
libMagick++-devel
perl-PerlMagick-debuginfo
perl-PerlMagick
libMagickWand-7_Q16HDRI10
libMagickWand-7_Q16HDRI10-32bit-debuginfo
libMagickCore-7_Q16HDRI10-32bit
libMagick++-devel-32bit
libMagickCore-7_Q16HDRI10-32bit-debuginfo
libMagickCore-7_Q16HDRI10
libMagick++-7_Q16HDRI5-32bit
libMagick++-7_Q16HDRI5-64bit-debuginfo
libMagickCore-7_Q16HDRI10-64bit
libMagick++-7_Q16HDRI5-64bit
libMagickWand-7_Q16HDRI10-64bit
libMagickCore-7_Q16HDRI10-64bit-debuginfo
libMagickWand-7_Q16HDRI10-64bit-debuginfo
libMagick++-devel-64bit
ImageMagick-devel-64bit
ImageMagick-doc
libMagickWand-7_Q16HDRI10-debuginfo
ImageMagick-config-7-upstream
imagemagick (Debian package)

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in AcquireAlignedMemory when processing memory allocation requests. A remote attacker can trigger excessive memory allocation to cause a denial of service.

Install security update from vendor's website.

• https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-q62c-h75r-2xhc